Absorption refrigerating apparatus



Oct. 11. 1927. 1,645,017

c. G. MUNTERS El AL mascara-mu aammmmzua APPARATUS Filed lay 16, 1922 of this kind previously known,

- directly disc Patented Oct. 11, 1927.

UNITED STATES PATENT OFFICE.

CAB-L GEOBG HUNTERS, OI DALA-JARNA, AN D BALTZAB CARL won PLATEN, 0F YBTAD,

- swam-.11, assreuoas,

BY MESNE ASSIGNMENTS, T0 ELEC'IBOLUX SEBV-EL COB- POBATION, A CORPORATION Oi DELAWARE.

ABBOBP'IIDN BEFBIGEBATING APPARATUS.

Application Med May 16, 1922, Serial No The invention relates to absorption refrigerating apparatus of the kind in which the circulation is eflected automatically by periodic operation of valve mechanism controlled in response. to variations of liquid level within the apparatus. In apparatus a special sluice vessel has been interposed between the absorber and generator for the purpose of regulating the periodic transfer of absorption liquid from the absorber to the generator, said sluice vessel containing the periodic operating valve mechanism. The

present invention eliminates the said sluice vessel and provides apparatus and mechanism whereb the absorption liquid may be arged from the absorber into the generator. The invention will be readily understood by reference to the accompanying drawing which shows one embodiment thereof. In the drawing K desi ates a generator or boiler which is heated in any desired manner and which contains a refrigerant, for example, ammonia, in solution, in an absorption liquid. Armenia vapor passes from generator'K into condenser coil B wherein it is condensed and from which it passesthrough reducing valve R and thence into the evaporator'or refrigerator G where heat is absorbed from the surroundings due to the evaporation of the ammonia. The ammonia then passes through check valve 39 into absorber A. Weak absor tion liquid passes from the lower part 0 the enerator K throu h conduit L and throug reducing valve into the absorber A where it absorbs ammonia.

Extending from the absorber A directly into the generator K is a conduit 36. In conduit 36 and within the generator is a valve 37 controlled by a float 38 also situated within the generator and movable in response to changes of liquid level in the generator. When the level of ii uid lowers below a given low value oat 38 operates valve 37 to open the same. The pressure is then e ualized in the enerator and absorber'an valve 39 closes ue to thegreater pressure in absorber A than in the eva orator. Liquid then flows from the absor r down into the boiler. When the level of the liquid has risen to a given high value float 38 closes valve 37 and disconnects the generator from the absorber 581,884, and in Sweden December 8, 1921.

whereupon ammonia vaporagain asses to the condenser B and thence throng the circuit to the absorber A.

Float 38 is arranged within a receptacle 1 1 open at the top and connected with the liquid space of the generator through a restricted opening 13 due to which the liquid level rises more slowly in vessel 11 than in the generator proper.- I The pur ose of this arrangement is to insure that t e absorber be entirely emptied before the float has been raised so far as to close valve 37. After valve 37 has been closed the pressure lowers in the absorber A due to absor tion of the ammonia remaining in the absor r and connection is then efl'ected between absorber A and evaporator G.

We claim: I

1. In absorption refrigerating ap ratus the combination of a generator, an a sorber situated above said generator, a condenser and an evaporator connected so as to =form closed circulating systems for the cooling agent andthe absorption liquid, includin a conduit directly connecti the absor r with the generator, a valve nserted in said conduit so as to be entirely enclosed within the apparatus and means for operating said valve under the control of the variations of the liquid level in the ibeing entirely enclose generator, said means within the apparathe combination of a generator, an a sorber situated above said generator, a condenser and an evaporator connected so as to form closed circulating systems for the cooling agent and the absorption liquid, includin a conduit directly connecting with the generator, a valve inserted in said conduit so as to be entirely enclosed within the apparatus, a float disposed in the generator, and operating means connecting the cat with said valve to cause the valve to be opened and closed periodically through the displacement of the float, said means being entirely enclosed within the apparatus.

3. In absorption refrigerating ap aratus the combination of a generator, an a sorber, a condenser and an evaporator connected so as to form circulating systems for the cooling agent and the absorption liquid, includingba conduit directly connecting the ab sor er. with the generator, a valve inserted the absor r in said conduit, an ogen vessel the generatorheonmnieafing with the liqmd chamber 0 t e and a oat di d in said vessel and conneoted with sai valve so as to open and close the valve riodically.

4. In a sorption refrigerating apygslrtus, the combination of a generator, an a rber situated above said generator, a condenser and an evaporator connected so as to form closed circulating systems for the cooling agent and the absorption liqu1d, inclmlmea conduit directly connecting the sheer r with the generator, a valve inserted in said eondnit and situated wholly within said aps and means responsive to the level of aid in said generator situated wholly within said apparatus to open said valve nerator through a narrow passage,

when the level in the a given low value an when the li uid levelin the generator rises above a pre etermined high value.

5. In refrigerating ar the combination of a generator, Ma gham-her, a condenser and an evaporator connected so as to form closed circulating systems for the cooling agent and the absorption liquid, including a conduit within the generator in communlcation with the absorber and means wholly within the generator to control flow through said conduit in onse to variations of liquid level in the generator.

In witness whereof, we have hereunto signed our names.

CARL GEORG MUNTERS. BALTZAR CARL vex PLATEN.

enerator falls below to close said valve,

in said conduit, an open vessel in the generator comnnicating with the liquid chamber of the enerator through a narrow passage, and a oat dis osed in said vessel and connected with sai valve so as to open and close the valve periodically.

4. In absorption refrigerating apparatus, the combination of a generator, an absorber situated above said generator, a condenser and an evaporator connected so as to form closed circulating systems for the cooling agent and the absorption liquid, including a conduit directly connecting the absor er with the generator, a valve inserted in said conduit and situated wholly within said apatus and means responsive to the level of uid in said generator situated wholly within said apparatus to open said valve communication with the absorber and means wholly within the generator to control flow through said conduit in response to variations of liquid level in the generator.

In witness whereof, we have hereunto signed our names.

CARL GEORG MUNTEBS. BALTZAR CARL von PLATEN.

' DISCLAIMER. v ,645.017.0arl Georg Hunters and Ba'ltsar Carl Platen, Dala-Jarna and Ystad,

Sweden.

Anson-non Rarmomrmo APrAnA'rUsf Patent dated October 11,

1927. Disclaimer filed September 28, 1928, by the assignee, by mesne assignments, Electrolum Servel Oorpomtion.

Hereby enters this disclaimer to claim!) of the aforesaid patent which is in the 1 following words, to wit:

5. In absorption refrigerating apparatus, the combination of a generator, an

level in the generator.

[Official Gazette October 23, 1928.] 1

absorber, a condenser and an evaporator connected so as to form closed circulating s stems for the cooling agent and the absorption liquid, lncluding a condu t within the generator in communication with the absorber and means wholly within the generator to control flow throughsaidconduit in response to variations of liq ud enerator falls below to close slid valve,

DISCLAIMER.

[,645.017.0arl Georg M 'Lmt61'8 and Baltza'r Carl Platen, Dala-Jarna and Ystad,

Sweden. ABSORPTION REFRIGERATING ilrr'arm'rus. Patent dated October 11. 1927. Disclaimer filed September 28, 1928, by the assignee, by mesne assignments, Electrol-uw Servel Corporation. I v

Hereby enters this disclaimer to claim 5 of the aforesaid patent which is in the following words to wit:

"5. In absorption refrigerating apparatus, the combination of a generator, an absorber, a condenser and an evaporator connected -so as to form closed circulating systems for the cooling agent and the absorption liquid, including a conduit within the generator in communication with the absorber and means wholly within the generator to control flow level in the generator.

[Oficial Gazette October 23, 1928.]

through said'conduitin response to variations of liquid 

